package lzzy1;

import jakarta.servlet.ServletException;
import jakarta.servlet.annotation.WebServlet;
import jakarta.servlet.http.HttpServlet;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import jakarta.servlet.http.HttpSession;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;
@WebServlet(name = "CartServlet",urlPatterns = "/CartServlet")
public class CartServlet extends HttpServlet {
    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        resp.setContentType("text/html;charset=utf-8");

        PrintWriter out = resp.getWriter();
        List<Cake>cart=null;
        boolean purFlag = true;

        HttpSession session=req.getSession(false);

        if (session == null){
            purFlag=false;
        } else {
            cart=(List)session.getAttribute("cart");
            if (session == null){
                purFlag=false;
            }
        }
        if(!purFlag) {
            out.write("对不起！您没有购买任何商品。<br>");
        }else {
            out.write("您购买的蛋糕有：<br>");
            double price=0;
            for(Cake cake :cart){
                out.write(cake.getName()+"<br>");
            }
        }
    }
}
